Enbridge's Line 2 **Line 67 tar sands** pipeline has leaked an estimated 600 gallons[3] of crude oil at its pump station near Viking, Minnesota. Line 2 was built in 1956 and has a history of spills. Regulators ordered Enbridge to reduce its Line 2 operating pressure in October 2010 following the company's Kalamazoo River tar sands spill.

The Enbridge Viking pump station also receives oil from the Alberta Clipper (aka Line 67 pipeline[4]) that carries heavy crude oil and tar sands bitumen from the Alberta tar sands region south from Hardisty to Superior, Wisconsin and refineries in the midwestern United States. It is unclear whether the product that spilled was tar sands-derived diluted bitumen. According to a link provided by Enbridge[5] subsequent to this story's original posting, Line 2 begins in Edmonton and carries petroleum products, including crude oil, from Edmonton to Superior. Both lines pass through the Viking pump station.

The U.S. Coast Guard National Response Center website[6] reports the details of the incident[7], which happened last night: “1044848”,”1044848”,”1044848”,”INCIDENT”,”23-APR-2013 17:09”,”THECALLERREPORTEDTHAT A LEAKON A PRESSURETRANSMITTERRESULTEDIN A RELEASEOFCRUDEOIL.”,”FIXED”,”EQUIPMENTFAILURE”,”23-APR-2013 15:45”,”18060 203THSTNW”,”MN”,”VIKING”,”MARSHALL”,”ENBRIDGEENERGY”,”SOIL”,”OIL: CRUDE”

DeSmog was alerted by the Indigenous Environmental Network[8], which is en route to the spill site to gather more information. Stay tuned for updates to this post below.

**This story originally reported that Enbridge Line 67 tar sands pipeline suffered the leak, but Enbridge subsequently confirmed the spill was on Line 2. DeSmog regrets the error.**

The Line 2 leak has stopped and Enbridge is working on cleanup operations now. The spill does not appear to have reached water. For more details, visit http://enbridgeus.com/Viking/[10].

Similar to the controversial Keystone XL pipeline battle, Enbridge is currently seeking a Presidential Permit[11] from President Barack Obama to expand the capacity of the Alberta Clipper Line 67[12] where it crosses the international border. The Alberta Clipper pipeline currently transports approximately 450,000 bpd of crude oil from the Western Canadian Sedimentary Basin to the midwestern U.S.

“Enbridge's Line 6 pipeline, linking Griffith, Ind. to Sarnia, Ont., was shut down temporarily by American regulators last July following a rupture and spillage of more than 3 million litres of crude oil into the Kalamazoo River near Marshall, Mich. Three months later, the National Energy Board, which was monitoring the U.S. investigation, quietly ordered a 20 per cent pressure reduction on Enbridge's Line 2 Canadian pipeline, which links Edmonton to Superior, Wis., along sections that contained pre-1970s flash-welded pipe.”

“Canadian regulators ordered Enbridge Inc (ENB.TO) to cut pressure on its 440,000 barrel per day Line 2 last October after raising concerns that the company might not be able to detect cracks in the oil pipeline. The National Energy Board's order remains in effect. It restricts the pipeline, which runs from Edmonton, Alberta, to Superior, Wisconsin, to operating at 80 percent of normal pressure, according to documents provided by the regulator. The board said it was concerned that Enbridge might not be able to consistently identify cracks in pipes laid before the 1970s using flash-welding techniques.”